private void openfolder(object sender, DoWorkEventArgs e) { var scandirectory = new ScanDir(myopenfilename); scandirectory.OnListFiles += Onaddtolistview; scandirectory.UpdateProgress += UpdateProgress; scandirectory.Run_Scan(); var trackxml = new XMLutils(appPath + "\\trackxml.xml"); trackxml.Addrecord(scandirectory.tracks); //poptreeview(scandirectory.tracks); }